The Solution: GRL DNESS2-S8N – aBat’s Precision Intervention
After an extensive search and rigorous review of technical data, Core Energy selected the GRL DNESS2-S8N Series Fuse Link. The fuse, particularly in the high-current ratings up to 630A necessary for the main buses, provided the unique combination of features required for this critical juncture. The DNESS2-S8N was specified for installation at the output of each major battery cluster and the main input of the PCS.
How the DNESS2-S8N Addressed the Pain Points:
- The aBat Advantage: Ultra-Low I²t Limitation:
- The DNESS2-S8N’s aBat (Partial Range for Battery Protection) utilization category signifies a core design priority: achieving the fastest possible speed under high fault conditions. Its refined silver melting element structure is engineered to begin vaporization during the initial rise of the fault current, long before it reaches its destructive peak.
- Result: The fuse successfully limited the I²t to a value that was comfortably below the critical non-destruct threshold of the PCS semiconductors. This provided Dr. Reed’s team with the necessary technical compliance and guaranteed asset protection that no other comparable solution could offer.
- 250kA Breaking Capacity: Structural Integrity and Confidence:
- While the calculated short circuit was 150kA, the DNESS2-S8N provided an ultimate 250kA margin. This high rating is a pledge of structural integrity.
- Result: Core Energy was confident that even if external factors caused the prospective fault current to exceed the maximum calculation, the fuse’s robust ceramic body and internal quartz arc-quenching matrix (as shown in the product image) would contain the explosive energy safely and completely, preventing any physical damage or collateral fire risk within the sensitive battery enclosure.
- 1500V DC Reliability and Longevity:
- The fuse is certified for the full 1500V DC under IEC/EN 60269-7. Its design ensures robust DC arc extinction, critical for maintaining system uptime.
- Result: Beyond protection, the DNESS2-S8N is designed for long-term reliability in cycling environments. Its sturdy bolt-on terminals ensure low contact resistance, minimizing Watt Loss and subsequent heat generation, thereby preventing thermal degradation during continuous high-current operation (up to 630A).
GRL Group
The Outcome: High Reliability and Guaranteed Asset Safety
Following commissioning, the BESS facility was integrated into the grid. During required site testing, simulated high-current faults verified the DNESS2-S8N’s performance.
- Asset Protection Confirmed: The fuses performed exactly as designed, isolating faults in microseconds and protecting the high-value PCS inverters by successfully maintaining the critical I²t limit.
- Operational Confidence: The clear, visual indicator on the side of the fuse provided immediate fault status feedback, speeding up troubleshooting and replacement procedures.
The GRL DNESS2-S8N was not just a component purchase; it was a strategic investment that solved a fundamental high-voltage engineering problem. It became the silent guardian of Core Energy’s multi-million-dollar BESS, ensuring maximum uptime and long-term security in the volatile 1500V DC energy landscape.
— Actual Situational Data Requires Email Inquiry —
Accurate selection of the GRL DNESS2-S8N Series (ranging from 100A to 630A) requires specific data, including your battery system’s exact Voc, Isc, and most importantly, the I²t non-destruct threshold of your power semiconductors, along with thermal derating factors.
Please contact the GRL Technical Support Team via email to receive detailed specifications, I²t performance curves, and customized protection solutions for your 1500V BESS deployment.
